This circuit uses a transistor as a sensor and operates in the range of 0 to 50º C. We found it in old documentation. Operational equivalents can be used.
One of the most popular EPROM memories of the past is the 2716 2k x 8, whose pinout with practical use...
This circuit inverts the phase of an audio signal, maintaining its intensity. The transistors can...
In the figure we have a simple way to have a peak bargraph indicator. The amplifier is of the...